[Earw0rm]

A lot of this depends on the scale - and cost (two way relationship) of domestic battery rollout.

An individual uses (broad rule of thumb average) somewhere in the 300-500W range to participate in society at a modern level. A warm and well-lit home, cooking a couple of meals, hot water, an EV with enough charge to get to work, TV, laptop and so on. This is before we consider industry and infrastructure.

It's possible to bring those numbers down a bit, but not a lot. Even with fairly aggressive optimisations (Passivhaus, ebike, low-energy cooking), below 100W it gets tough.

But on the flip side, this means a 50kWh home battery can keep a family home running for a day, and 100-200kWh longer than that. 100kWh is affordable today as a home upgrade, and if people adopted a little more of a flexibility ethic with respect to availability, 200kWh will comfortably run a four-person home for a week.

Granted 200kWh domestic instals aren't affordable yet, but by the time these NPPs are online - five years? - they likely will be.